552778069 has 4 divisors (see below), whose sum is σ = 585294444. Its totient is φ = 520261696.

The previous prime is 552778043. The next prime is 552778087. The reversal of 552778069 is 960877255.

552778069 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 497869969 + 54908100 = 22313^2 + 7410^2 .

It is a cyclic number.

It is not a de Polignac number, because 552778069 - 2⁹ = 552777557 is a prime.

It is a super-2 number, since 2×552778069² = 611127187134737522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (552778169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16258162 + ... + 16258195.

It is an arithmetic number, because the mean of its divisors is an integer number (146323611).

Almost surely, 2^552778069 is an apocalyptic number.

It is an amenable number.

552778069 is a deficient number, since it is larger than the sum of its proper divisors (32516375).

552778069 is a wasteful number, since it uses less digits than its factorization.

552778069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32516374.

The product of its (nonzero) digits is 1058400, while the sum is 49.

The square root of 552778069 is about 23511.2328260345. The cubic root of 552778069 is about 820.6984278543.

The spelling of 552778069 in words is "five hundred fifty-two million, seven hundred seventy-eight thousand, sixty-nine".